Telephone basic menu (Bluetooth
®
interface)
X Press the 002Bbutton.
If the connected telephone is ready for use,
the following display appears (example): 0043
Telephone status
0044 Signal strength of mobile phone network
Ä
0087 Receiver icon 0071or0075
0085 To display call lists
0083 Character bar
0084 Bluetooth ®
name of the currently con-
nected mobile phone
006B To display the Audio 20 phone book
X Press 002B.
When the connected mobile phone is ready
for use, the telephone basic menu appears.
i Bars 0044show the current signal strength
of the mobile phone network. If all bars are
filled, you have optimum reception.
If no bars are shown, reception is either
very poor or there is none at all.
The receiver symbol shows whether a call
is active/being connected 0075or not 0071.
Text message display in the telephone
basic menu The
Text Message Text Message menu item is only availa-
ble if the Bluetooth ®
phone supports the MAP
Bluetooth ®
profile ( Message AccessProfile).
The downloading of text messages from the
Bluetooth ®
phone must have been com- pleted. The menu item is otherwise grayed
out.
If you have an unread text message, the
0083
mail symbol is displayed. The symbol disap-
pears once you have read the text message.
The ú mail symbol is displayed as soon as
the text message memory is full. The symbol
disappears once you delete at least one text
message.
You can deactivate the automatic download
function for text messages stored in the
phone (Y page 55).
You can choose not to display the stored text
messages by activating the "Hide data" func-
tion (Y page 55). Reception and transmission volume
Once the mobile phone has been authorized,
you can optimize the transmission and recep-
tion volume settings. Find information on the
optimal setting for your mobile phone on the
Internet at
http://www.mbusa-mobile.com. Or call
the Mercedes-Benz Customer Assistance
Center at 1-800-FOR-MERCedes
(1-800-367-6372) (for the USA) or Customer
Relations at 1-800-387-010 0(for Canada).
i Incorrect settings may have an impact on
the quality of calls.
X Press 002B.
X Select Phone
Phone from the telephone basic
menu by turning 00790052007Athe controller and
press 0098to confirm.
X Select Connect Phones Connect Phones and press0098to
confirm.
X Select an authorized mobile phone from
the list by turning 00790052007Athe controller.
X Select the list symbol to the right of the
entry by sliding 00520096the controller and
press 0098to confirm.
X Select Reception Volume
Reception Volume orTransmis‐ Transmis‐
sion Volume
sion Volume and press0098to confirm. 48
Reception and transmission volumeTelephone
This device name is predetermined but can
usually be changed. To make a clear selec-
tion of the Bluetooth ®
device possible,
Mercedes-Benz recommends that you cus-
tomize the device name.
i A2DP (Advanced AudioDistribution
Profile): Bluetooth ®
audio profile for audio
data transmission
AVRCP (Audio VideoRemote Control
Profile): Bluetooth ®
audio profile for audio
data playback.
i Not all Bluetooth ®
audio devices available
on the market are equally suitable. For
more information on suitable Bluetooth ®
audio devices and on connecting Blue-
tooth ®
audio devices, visit the website
http://www.mbusa-mobile.com (for
USA). Or call the Mercedes-Benz Customer
Assistance Center at
1-800-FOR-MERCedes (1-800-367-6372)
(for the USA) or Customer Relations at
1-800-387-0100 (for Canada). Preconditions for Audio 20
X Bluetooth ®
must be activated in Audio 20
(Y page 32). Connecting a Bluetooth
®
device
General information Before using your Bluetooth
®
audio device
with Audio 20 for the first time, you will need
to authorize it.
When you authorize a new Bluetooth ®
audio
device, it is connected automatically.
Connecting comprises:
R searching for a Bluetooth ®
audio device
R subsequently authorizing it
You can connect up to 15 Bluetooth ®
devices.
i If you authorize a mobile phone that sup-
ports Bluetooth ®
audio, it is entered in the Bluetooth
®
phone list (Y page 44) as well
as in the Bluetooth ®
device list. Mercedes-
Benz recommends authorizing a mobile
phone in Bluetooth ®
telephony
(Y page 45).
Searching for and authorizing a Blue-
tooth ®
audio device X
Switch on Bluetooth ®
audio mode
(Y page 77).
If you see the No Bluetooth Audio
No Bluetooth Audio
Device Authorized
Device Authorized message, you will
need to authorize the Bluetooth ®
audio
device first.
X Select BT
BT Audio Audio by sliding 00520064and turning
00790052007A the controller and press 0098to con-
firm.
X Select Bluetooth Audio Device List
Bluetooth Audio Device List
and press 0098to confirm. Example: Bluetooth
®
device list
0043 Newly detected mobile phone with Blue-
tooth ®
audio function in range
0044 Bluetooth ®
audio player not within range
but previously authorized (symbol
appears in gray)
X To search: selectSearch Search for
forBT
BTAudio
Audio
Devices
Devices and press 0098to confirm.
Audio 20 searches for Bluetooth ®
audio
devices within range and adds them to the
Bluetooth ®
device list. For this purpose, the
devices must support the A2DP and AVRCP
Bluetooth ®
audio profiles. Bluetooth Audio
75Audio Z
